DESCRIPTION
The MP8794 is a fully integrated, highfrequency,
synchronous, buck converter. The
MP8794 offers a compact solution that
achieves up to 20A of output current with
excellent load and line regulation over a wide
input supply range. The MP8794 operates at
high efficiency over a wide output current load
range.
The device adopts an internally compensated
constant-on-time (COT) control mode that
provides fast transient response and eases loop
stabilization.
The operating frequency can be set to 600kHz,
800kHz, or 1000kHz with MODE configuration,
allowing the MP8794 frequency to remain
constant regardless of the input and output
voltages.
The output voltage start-up ramp is controlled
by an internal 1ms timer that can be increased
by adding a capacitor on REF/TRK. An opendrain
power good (PGOOD) signal indicates
whether the output is within its nominal voltage
range. PGOOD is clamped at about 0.7V with
an external pull-up voltage when the input
supply fails to power the MP8794.
Full protection features include over-current
protection (OCP), over-voltage protection
(OVP), under-voltage protection (UVP), and
over-temperature protection (OTP).
The MP8794 requires a minimal number of
readily available, standard external components.
It is available in a QFN-21 (3mmx4mm)
package.

FEATURES
 Wide Input Voltage Range
o 2.7V to 16V with External 3.3V VCC
Bias
o 4V to 16V with Internal Bias or External
3.3V VCC Bias
 Differential Output Voltage Remote Sense
 Configurable Accurate Current Limit Level
 20A Output Current
 Low RDS(ON) Integrated Power MOSFETs
 Adaptive COT for Ultra-Fast Transient
Response
 Stable with Zero-ESR Output Capacitor
 Output Voltage Discharge
 Excellent Load Regulation
 Output Voltage Tracking
 PGOOD Active Clamped at Low Level
during Power Failure
 Programmable Soft-Start Time from 1ms
 Pre-Bias Start-Up
 Selectable Switching Frequency from
600kHz, 800kHz, and 1000kHz
 Non-Latch OCP, OVP, UVP, UVLO, and
Thermal Shutdown
 Adjustable Output from 0.6V to 90% of VIN,
up to 5.5V Max
 Available in a QFN-21 (3mmx4mm)
Package
 The MPL-AY1265 Inductor Series Matches
Best Performance

APPLICATIONS
 FPGAs
 Flat-Panel Televisions and Monitors
 Multi-Functional Printers
 Access Points and Routers
 Optical Modules